<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Hierarchy render by canvas</title>
  <style>
    canvas {
      width: 800px;
      height: 800px;
    }
  </style>
</head>
<body>
  <canvas width="1600" height="1600"></canvas>
  <script src="https://d3js.org/d3-hierarchy.v1.min.js"></script>
  <script src="app.js"></script>
</body>
</html>